Environment & Ecology
72 questions available
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Q41.As a result of which treaty, ozone hole in Antarctica is slowly healing?
Correct Answer: C
The Montreal Protocol (1987), which phased out ozone-depleting substances, is responsible for the gradual healing of the ozone hole over Antarctica.
Q42.Atmospheric pressure decrease rapidly with altitude because the air becomes____ ?
Correct Answer: B
Atmospheric pressure decreases rapidly with altitude because the air becomes less dense at higher elevations.
Q43.Cause of Malaria is ____?
Correct Answer: C
Malaria is caused by Plasmodium parasites transmitted through the bite of infected female Anopheles mosquitoes.
Q44.Composition of Ozone layer?
Correct Answer: C
Composition of Ozone layer: O3. This description follows from the defining characteristics and established facts associated with the subject.
Q45.Deforestation will decrease?
Correct Answer: B
Deforestation will decrease: Rainfall. This description follows from the defining characteristics and established facts associated with the subject.
Q46.Dinosaurs and many other species were extinct about ____ years ago.
Correct Answer: B
Dinosaurs and many other species were extinct about 66 million years ago. This description follows from the defining characteristics and established facts associated with the subject.
Q47.Electrostatic precipitator is used to control?
Correct Answer: A
Electrostatic precipitator is used to control: Air pollution. This description follows from the defining characteristics and established facts associated with the subject.
Q48.Green House Effect” means:____?
Correct Answer: C
Green House Effect” means: Trapping of Solar energy due to atmospheric carbon. This description follows from the defining characteristics and established facts associated with the subject.
Q49.Ice mass that covers more than fifty-thousand square kilometers of land area is classified as____?
Correct Answer: A
Ice mass that covers more than fifty-thousand square kilometers of land area is classified as ice sheet. This description follows from the defining characteristics and established facts associated with the subject.
Q50.If the level of atmospheric pollution increases:
Correct Answer: A
If the level of atmospheric pollution increases: The length of the day will increases. Its geographic position or physical characteristics account for the description given.
Q51.In context of environment, the term dirty dozen” refers to ____?
Correct Answer: C
In context of environment, the term dirty dozen” refers to 12 persistent organic pollutants. The term is defined by the subject, process, or characteristic described in the question.
Q52.Montreal Protocol 1987 was____?
Correct Answer: C
Montreal Protocol 1987 was Treaty to protect ozone layer. This description follows from the defining characteristics and established facts associated with the subject.
Q53.Most of the ozone in the atmosphere is concentrated in the ____?
Correct Answer: C
Most of the ozone in the atmosphere is concentrated in the Stratosphere. Its geographic position or physical characteristics account for the description given.
Q54.Most of the ozone in the atmosphere is concentrated in the____?
Correct Answer: C
Most of the ozone in the atmosphere is concentrated in the Stratosphere. Its geographic position or physical characteristics account for the description given.
Q55.Mouna Loa is an example of?
Correct Answer: A
Mouna Loa is an example of: Active volcano. This description follows from the defining characteristics and established facts associated with the subject.
Q56.One of the main function of the earth’s ozone layer is to ?
Correct Answer: B
One of the main function of the earth’s ozone layer is to: Filter out ultraviolet rays. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q57.Ozone layer prevents ____ radiation from entering the atmosphere?
Correct Answer: B
Ozone layer prevents Ultraviolet radiation from entering the atmosphere. Its geographic position or physical characteristics account for the description given.
Q58.Ozone layer protects the Earth from ____ radiations from the Sun.
Correct Answer: D
Ozone layer protects the Earth from ultraviolet radiations from the Sun. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q59.Stratosphere is the atmospheric layer that absorbs most of ____ that Earth receives from the Sun.
Correct Answer: B
Stratosphere is the atmospheric layer that absorbs most of Ultraviolet radiation that Earth receives from the Sun. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q60.Sum of all ecosystems is classified as____?
Correct Answer: C
Sum of all ecosystems is classified as Biosphere. This description follows from the defining characteristics and established facts associated with the subject.